16610625603791 has 2 divisors, whose sum is σ = 16610625603792. Its totient is φ = 16610625603790.

The previous prime is 16610625603709. The next prime is 16610625603823. The reversal of 16610625603791 is 19730652601661.

It is a strong prime.

It is an emirp because it is prime and its reverse (19730652601661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16610625603791 - 2³⁰ = 16609551861967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16610625603701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8305312801895 + 8305312801896.

It is an arithmetic number, because the mean of its divisors is an integer number (8305312801896).

Almost surely, 2^{16610625603791} is an apocalyptic number.

16610625603791 is a deficient number, since it is larger than the sum of its proper divisors (1).

16610625603791 is an equidigital number, since it uses as much as digits as its factorization.

16610625603791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 16610625603791 in words is "sixteen trillion, six hundred ten billion, six hundred twenty-five million, six hundred three thousand, seven hundred ninety-one".